Sportsbook operator CG Technology (CGT) could lose its Nevada gaming license after being accused of ignoring a software glitch that miscalculated thousands of parlay wagers over a three-and-a-half-year period.

On Monday, the Nevada Gaming Control Board (NGCB) filed a formal complaint against CGT, alleging that the company had been aware of “systemic problems” in its bookmaking software, yet did nothing to fix the glitch and initially attempted to interfere with the NGCB’s investigation.

The complaint, which was submitted by Nevada Attorney General Adam Laxalt, includes six separate counts against CGT. Each count carries the possibility of a $100k penalty.

The NGCB is also pursuing disciplinary action against CGT’s Nevada gaming license. The Nevada Gaming Commission is expected to consider the matter at its next meeting in June.